Blar i NTNU Open på forfatter "Aamo, Ole Morten"
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Early Detection of Cerebral Palsy Using Two Computer-Based Methods
Lundeby, Hege Gran (Master thesis, 2016)In this master thesis the assignment was to perform a statistical analysis of two different computer-based methods, to see which one that had the highest predictive ability for fidgety movements in infants. One method has ... -
Evaluation of distributed damping subs with active control for stick–slip reduction in drilling
Nüsse, Pauline Marie; Ambrus, Adrian; Aarsnes, Ulf Jakob Flø; Aamo, Ole Morten (Peer reviewed; Journal article, 2023)Drill string vibrations can cause damage to the equipment and reduce drilling performance. There are two primary methods to address this issue: top drive control or the use of specialized tools near the bottom hole assembly ... -
Evaluation of Kalman filters for estimation of the annular bottomhole pressure during drilling
Rognmo, Thomas (Master thesis, 2008)Estimation of the annular pressure at critical locations in the well is crucial for high-precision pressure control. Certain parameters which are important in order to determine the pressure profile of the well (in particular ... -
Experimental Testing of HeaveLock
Viken, Hanna Hunnes (Master thesis, 2016)When drilling from a floating rig the ocean waves induces a vertical motion on the rig. This movement is called heave motion. During a connection, when the drill string is extended, the drill string is attached to the rig ... -
Explicit Backstepping Kernel Solutions for Leak Detection in Branched Pipe Flows
Wilhelmsen, Nils Christian Aars; Aamo, Ole Morten (Peer reviewed; Journal article, 2023) -
Exploiting wired-pipe technology in an adaptive observer for drilling incident detection and estimation
Holta, Haavard H. F.; Aamo, Ole Morten (Peer reviewed; Journal article, 2021)We deploy an adaptive observer recently developed for general hyperbolic partial differential equation (PDE) systems to detect and diagnose various drilling incidents. The well is modeled by a distributed PDE which, contrary ... -
Extremum seeking for real-time optimal drilling control
Aarsnes, Ulf Jakob Flø; Aamo, Ole Morten; Krstic, Miroslav (Peer reviewed; Journal article, 2019)This paper demonstrate the feasibility and illustrates some challenges of applying extremum seeking control to online optimization of the drilling process. Specifically, we consider the problem of finding the hook-load ... -
Fast Pressure Control in Managed Pressure Drilling
Totland, Johan Fredrik Holm (Master thesis, 2014)In drilling operations, it is of great importance to efficiently and safely control the pressure in the well. To avoid possible damage to the reservoir, equipment, personnel and the environment, the pressure in the well ... -
Generering av Forstyrrelse i et Eksperimentelt Lab-oppsett for Managed Pressure Drilling
Drønnen, Robert Tafjord (Master thesis, 2013)Dette er et prosjekt på 30 studiepoeng utført siste semesteret på et toårig masterprogram. Prosjektet er en videreføring av prosjektet utført høsten 2012, i faget TTK4551 Teknisk kybernetikk, fordypningsprosjekt. Oppgaven ... -
Heave Compensated Tripping
Lie, Morten (Master thesis, 2019)Olje- og gassindustrien blir møtt med store utfordringer når nye brønner skal bores fra flytende plattformer. En av disse utfordringene er trykkvariasjoner i brønnen forårsaket av bevegelse av boreutstyret. Siden havbølger ... -
A heuristic observer design for an uncertain hyperbolic PDE using distributed sensing
Holta, Haavard H. F.; Aamo, Ole Morten (Peer reviewed; Journal article, 2021)We design an adaptive observer for semi-linear 2 × 2 hyperbolic PDEs with parametric uncertainties in both state equations. The proposed method is an extension of a previous result where parametric uncertainties were only ... -
Implementation of a control system for an adaptive damper in a quarter car context
Nordrik, Marius Hamre (Master thesis, 2021)Arbeidet presenterer et komplett kontrollsystem for styring av en magnetoreologisk støtdemper i forbindelse med en kvartbilmodell. Systemet implementerer en strømkontroller, kraftkontroller og en kraftreferansegenerator ... -
Implementation of a Mobile Application for Diagnosis of Cerebral Palsy
Buen, Christine Østraat (Master thesis, 2016)Dette masterprosjektet er gjennomført i samarbeid med et forskningsprosjekt ved St. Olavs Hospital og NTNU i Trondheim, som omhandler tidlig vurdering av spedbarns risiko for å utvikle cerebral parese (CP). Spedbarn med ... -
Improved Kick and Loss Detection and Attenuation in Managed Pressure Drilling by Utilizing Wired Drill Pipe
Holta, Haavard H. F.; Anfinsen, Henrik; Aamo, Ole Morten (Journal article; Peer reviewed, 2018)A model based method for kick and loss detection and attenuation in Managed Pressure Drilling is presented. The drilling system is modeled as a distributed parameter system combined with a reservoir flow equation containing ... -
Influence of Weight-on-Bit on Percussive Drilling Performance
Song, Xianfeng; Aamo, Ole Morten; Kane, Pascal-Alexandre; Detournay, Emmanuel (Peer reviewed; Journal article, 2020)A phenomenological model for percussive drilling systems is proposed in this paper to explain the experimentally demonstrated existence of an optimal weight-on-bit (WOB), for which the rate of penetration (ROP) is maximized. ... -
Instance Segmentation and Pose Estimation of Assembly Parts Using Deep Learning and Synthetic Data Generation
Opheim, Torbjørn; Lecerof, Jonas (Master thesis, 2019)Ved å bestemme nøyaktig translasjon og rotasjon av objekter, kan mer sofistikerte hjelpesystemer og roboter utmerke seg i en rekke scenarier og næringer. På fabrikkene i Volvo, foregår det kontinuerlig forskning som ser ... -
Integrated Model Based Control of Topside Process and Production Wells
Stange, Martin Berger (Master thesis, 2007)In offshore production systems for oil and gas, the wells are usually controlled manually, while the topside process is controlled using a decentralized control system. It is clear that this control structure may not be ... -
Joint Operation of Automatic Managed Pressure Drilling and HeaveLock™
Mollan, Torkil Sekse (Master thesis, 2019)Utviklingen av teknologi for boreoperasjoner offshore har kommet en lang vei de siste årene, og fortsetter stadig å skyve grensene på det som definerer at en brønn er umulig å bore. Utviklingen drives av et konstant jag ... -
Kick & Loss Detection and Estimation using Distributed Models
Holta, Haavard (Doctoral theses at NTNU;2020:233, Doctoral thesis, 2020)A kick in oil and gas drilling is an unwanted, unexpected leak of oil and gas from the reservoir into the well-bore. This can happen when the surrounding formation pore pressure exceeds the well-bore pressure. A loss of ... -
L1 Adaptive Control in Managed Pressure Drilling
Pedersen, Torbjørn (Master thesis, 2009)The control solution is a crucial part of Managed Pressure Drilling. Existing solutions are often based on Proportional plus Integral (PI) control and have several drawbacks, mainly poor performance for some common drilling ...